As a programmer, the biggest problem I have with crypto is that it adds an (I believe) unnecessary pressure on either compute (for proof of work) or storage (for proof of stake) prices for everyone else in the world, for what is seemingly not a huge gain.
Proof of work in particular is awful, because one of the biggest problems that we actually have in the real world is global warming and adding a financial incentive to using more power is exactly the wrong direction we need to be going in. I realize that a lot of crypto is moving away from proof of work, but it's still there.
That's true for sure, but that doesn't mean that it's valve didn't do an absolute fuckload of work to get proton to be actually functional.
Getting direct3d and vulkan working with actually useful performance was the turning point for Wine being useful for games in addition to just standard applications.
They definitely spent an ass-load of money on that and the fact that Wine was around for 25 years before that just goes to show that no one else was willing to do that.